Where does “acanthopterygian” come from?

acanthopterygian (English) comes from Latin acanthus, from Ancient Greek ἄκανθος, from Ancient Greek ἄκανθα, from Ancient Greek ἄνθος, from Proto-Hellenic ántʰos, from Proto-Indo-European h₂éndʰos, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

acanthopterygian (English): Any fish of the superorder Acanthopterygii;...

Definitions

  1. Any fish of the superorder Acanthopterygii;...

Ancestry of “acanthopterygian”, step by step

acanthopterygian traces back through two separate lines of ancestry.

via Latin acanthus

StepLanguageWordMeaning
1LatinacanthusA plant known as bear's-foot; A thorny evergreen...
2Ancient GreekἄκανθοςThe acanthus plant
3Ancient GreekἄκανθαA thorny plant; A thorn, spine, or prickle;...
4Ancient Greekἄνθοςflower, blossom, bloom; froth, scum; bloom, peak
5Proto-Hellenicántʰosflower, blossom
6Proto-Indo-Europeanh₂éndʰosbloom
7Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via Ancient Greek πτερύγιον

StepLanguageWordMeaning
1Ancient Greekπτερύγιονwing, fin
2Ancient Greekπτέρυξwing; feathers; fins
3Ancient Greekπτερόνfeather; wing; Any winged creature
4Proto-Indo-Europeanpéth₂r̥wing; feather
5Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European -osEvery word from Proto-Indo-European h₂éndʰosEvery word from Proto-Hellenic ántʰos